Symbiote event art, Slay the Spire 2

Symbiote

Along your travels, you stumble upon a dark, amorphous polyp. You can sense that it is very old, and very evil.

Approach...
It suddenly jumps onto you. You feel a searing pain as it latches onto your arm, but in an instant it is gone.

...? Where did it go?
You torch the dark polyp. As it screeches and burns into ashes, your head pulses painfully but you manage not to faint.
What was that thing?
Individual choiceEach player picks their own

What you can obtain

Transform
CardChoice: Kill with Fire
Enchant
Attack with CorruptedChoice: Approach

Where it appears

How ? rooms roll ›

What each choice does

Approach

Enchant an Attack with Corrupted.

None of your Attacks can be Enchanted.

EnchantAn Attack with Corrupted
What the game says
It suddenly jumps onto you. You feel a searing pain as it latches onto your arm, but in an instant it is gone....? Where did it go?

Kill with Fire

Choose a card to Transform.

TransformA card
What the game says
You torch the dark polyp. As it screeches and burns into ashes, your head pulses painfully but you manage not to faint.
What was that thing?

Which option to take

Approach

Our pick
EnchantAn Attack with Corrupted
  • Approach, on a big single-hit finisher you play once per fight; the 2 HP tax is nothing next to half again the damage.

Kill with Fire

TransformA card
  • Kill with Fire when the deck has a Strike or another dead card you want gone but cannot remove.

How it plays

  • Approach lets you enchant an Attack with Corrupted: it deals 50% more damage, and you lose 2 HP every time you play it.
  • The option is locked when no Attack can take an enchantment.
  • Kill with Fire opens a card select and transforms one card of your choice into a random card of any rarity.

Changes by version

  1. 18 Dec 2025CostInternal playtest
    Changed Symbiote event "Approach" option: no longer costs max HP to choose
  2. 27 Feb 2025NumberInternal playtest
    's Corrupted enchantment: HP loss on play decreased from 3 to 2
  3. 9 Jan 2025ChangeInternal playtest
    Reworked "Kill with fire" option
All 12 patch notes9 older
  1. 5 Dec 2024ChangeInternal playtest
    "Kill with Fire" choice now damages you for 6 HP with no other effect
  2. 14 Nov 2024ArtInternal playtest
    Added VFX
  3. 1 Nov 2024DamageInternal playtest
    "Kill with Fire" choice - "Take (20% of your current HP in) damage. Choose a card to remove from your deck."
  4. 5 Jul 2024Bug fixInternal playtest
    Symbiote "Kill with Fire" event should no longer softlock if you have removable cards
  5. 29 Jun 2024ReworkInternal playtest
    Reworked Symbiote event
  6. 17 May 2024ArtInternal playtest
    Event Portrait updates
  7. 8 Sep 2023ArtInternal playtest
    Updated event art
  8. 9 Jun 2023Bug fixInternal playtest
    Fix softlock at Symbiote event
  9. 2 Jun 2023InterfaceInternal playtest
    Added a locked option to Symbiote event if you don't have enough attack cards
    ReworkInternal playtest
    Reworked Symbiote event choice. Lose 6HP and gain the new enchantment Corrupted

Internal playtest notes are from before the Early Access release. Names and numbers in them can differ from the game today.

Purchase today
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